More answers

anonymous

6 years ago

expand your window.

anonymous

6 years ago

how do i do that?

jim_thompson5910

6 years ago

This is an isosceles triangle. So you can cut this triangle in half to get
|dw:1331333001972:dw|
then you can use the pythagorean theorem to find the height x
x^2 + 9^2 = 24^2
x^2 + 81 = 576
x^2 = 576 - 81
x^2 = 495
x = sqrt(495)
x = 22.248595
So the height is roughly 22.248595
This means that the area is then A = (bh)/2 = (18*22.248595)/2 = 200.237355
So the area is roughly 200.237355 square units.